answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ZanzabumX
1 month ago
6

Bananas are to be cooled from 28°C to 12°C at a rate of 1140 kg/h by a refrigerator that operates on a vapor-compression refrige

ration cycle. The power input to the refrigerator is 9.8 kW. Determine (a) the rate of heat absorbed from the bananas, in kJ/h, and the COP, (b) the minimum power input to the refrigerator, and (c) the second-law efficiency and the exergy destruction for the cycle. The specific heat of bananas above freezing is 3.35 kJ/kg·°C.
Engineering
1 answer:
Viktor [391]1 month ago
8 0
A) B) C) The second law efficiency is 4.85%, with exergy destruction calculated at 9.3237 kW. The provided data includes temperatures in degrees Celsius and a refrigerator power input of 9.8 kW, along with a specific heat value of 3.35 kJ/kg·°C.
You might be interested in
1. Mark ‘N’ if a wrong type of units is used. Mark ‘Y’ otherwise. (1 point each)
pantera1 [306]

Response:

bsbsdbsd

Clarification:

7 0
3 months ago
Your driver license will be _____ if you race another driver on a public road, commit a felony using a motor vehicle, or are fou
iogann1982 [368]

Hello there,

In this scenario, the driver's license has been both confiscated and suspended.

Therefore, the answer is: A)

Achievements.

6 0
3 months ago
Read 2 more answers
. A storm sewer is carrying snow melt containing 1.200 g/L of sodium chloride into a small stream. The stream has a naturally oc
Kisachek [356]

Answer:

Explanation:

In a steady-state condition, the total volume exiting matches the total volume entering, and

the total amount of salt entering equals the total amount of salt exiting.

The volume entering each minute is = 2000 + 2 x 10³ x 60

= 122000 L.

The total salt entering per minute = 1200 x 2000 + 20 x 2 x 10³ x 60

= 2400000 + 2400000 mg

= 4800000 mg.

The volume of water exiting each minute = 122000 L.

The total salt exiting each minute = 4800000 mg.

The concentration of salt in the exiting water = 4800000 / 122000

= 39.344 mg / L.

3 0
3 months ago
The manufacturer of a 1.5 V D flashlight battery says that the battery will deliver 9 mA for 40 continuous hours. During that ti
pantera1 [306]

Response:

a) 144.000 seconds

b) and c) Battery voltage and power graphs are in the attached image.

   V=-\frac{0.5}{144000} t + 1.5 V[tex] [tex]P(t)=-(31.25X10^{-9}) t+0.0135  where D:{0<t h="" />

d) 1620 J

Description:

a) The initial response is derived via a rule of three

s=\frac{3600s * 40h}{1h} = 144000s

b) Using the line equation from the starting point (0 seconds, 1.5 V)

m=\frac{1-1.5}{144000-0} = \frac{-0.5}{144000}

where m denotes the slope.

V-V_{1}=m(x-x_{1})

where V represents voltage in volts and t signifies time in seconds

V=m(t-t_{1}) + V_{1} along with P and m.

V=-\frac{0.5}{144000} t + 1.5 V[tex] c) Using the equation VPOWER IS DEFINED AS:[tex] P(t) = v(t) * i(t) [tex]so.[tex] P(t) = 9mA * (-\frac{0.5}{144000} t + 1.5) [tex][tex]P(t) = - (31.25X10^{-9}) t + 0.0135

d) By evaluating that count.

E = \int\limits^{144000}_{0} {P(t)} \, dt = \int\limits^{144000}_{0} {v(t)*i(t)} \, dt

E = \int\limits^{144000}_{0} {-\frac{0.5}{144000} t + 1.5*0.009} \, dt = 1620 J

4 0
2 months ago
Other questions:
  • Retype the below code. Fix the indentation as necessary to make the program work. if 'New York' in temperatures: if temperatures
    9·1 answer
  • As shown, a load of mass 10 kg is situated on a piston of diameter D1 = 140 mm. The piston rides on a reservoir of oil of depth
    9·1 answer
  • The 10-kg block slides down 2 m on the rough surface with kinetic friction coefficient μk = 0.2. What is the work done by the fr
    7·1 answer
  • Soap is a very interesting chemical. We even discussed it on the discussion board. How does it work, exactly?
    7·1 answer
  • The electrical panel schedules are located on EWR Plan number ___.
    13·1 answer
  • The water level in a large tank is maintained at height H above the surrounding level terrain. A rounded nozzle placed in the si
    9·1 answer
  • A composite wall consists of 20 mm thick steel plate backed by insulation brick (k = 0.39 W/mK) of 50 cm thickness and overlaid
    6·1 answer
  • Consider a convergent-divergent duct with exit and throat areas of 0.5 m2 and 0.25 m2, respectively. The inlet reservoir pressur
    6·1 answer
  • A mechanical system comprises three subsystems in series with reliabilities of 98, 96, and 94 percent. What is the overall relia
    10·1 answer
  • According to the EWR specifications, ___ is responsible for picking up and disposing of debris or rubbish from
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!